View clinical trials related to Respiratory Tract Diseases.
Filter by:The study design is cross-sectional using a self-completion questionnaire in an English speaking multi-ethic population within Leicester and Leicestershire. The study will adopt a convenient and purposive sampling recruitment strategy across a variety of settings within Leicestershire to facilitate recruitment of a wide range of participants.
According to World Health Organization (WHO), non-communicable diseases account for 70% of global mortality. Chronic Respiratory Disease (CRD) affects more than one billion people and is the third leading cause of annual death of five million people after cardiovascular disease and cancer. Asthma and chronic obstructive pulmonary disease (COPD) are the two most common diseases of CRD and are part of obstructive airway disease (OAD). Asthma and COPD are distinguished by the clinical manifestations and therapeutic strategy according to Global Initiative for Asthma (GINA) and Global Initiative for Chronic Obstructive Lung Disease (GOLD). However, in Vietnam, most patients with OAD are treated with an inhaled corticosteroid (ICS) combined with a long-lasting bronchodilator because the specific diagnosis is not always possible. In addition, a significant proportion of patients have clinical features of both asthma and COPD that is defined as the asthma COPD overlap (ACO). The definition of ACO remains controversial because it is not a distinct disease in which their specific treatment is still under debate that ICS is being generally proposed. It is understood that most OAD in Vietnam is treated with ICS. However, it is now accepted that in COPD (or COPD-like ACO) patients receiving this treatment may promote respiratory infections and even tuberculosis in endemic countries including Vietnam. Few data on the relative prevalence of asthma, COPD, and ACO are available in Vietnam. A recent study in Vietnam proposed defining asthma, COPD and ACO based on symptoms, ventilatory obstruction and bronchodilator (BD) reversibility, cumulative smoking, and age. Mites sensitization and exposure to biomass fume were then evaluated in patients having ACO. By doing so, COPD patients are smoking (≥ 10 pack-years) and have irreversible bronchial obstruction. Asthmatics are those with completely reversible bronchial obstruction OR non-smoking patients (<10 pack-years) and partially reversible obstructive. The other OAD patients were classified as having "ACO". Based on these definitions, the prevalence of COPD, asthma and ACO was 40%, 18% and 42%, respectively. Then ACO was defined as "from COPD, or ACO-COPD" in case of biomass exposure and negative mite skin tests, the others being ACO "from asthma or ACO-asthma". Currently, several biomarkers have been evaluated in the differential diagnosis and prognosis of OAD. The concentration of immunoglobulin E (IgE), the number of eosinophils in blood and sputum, nitric oxide (NO) in exhaled air, and recently periostin have been associated with asthma. On the other hand, biomarkers of systemic inflammation (C-reactive protein (CRP), fibrinogen, TNFα, IL-6 and IL-8) have also been investigated in COPD. Few data are available on the ACO biomarkers. In this study, the investigators will define the different phenotypes of chronic OAD (asthma, ACO-asthma, ACO-COPD and COPD) taking into account the reversibility of bronchial obstruction, cumulative smoking, biomass fume exposure and immediate sensitization to mites. Blood biomarkers and exhaled NO will be measured and analyzed in each phenotype. The treatment of COPD, asthma, ACO-COPD, and ACO-asthma based on the GINA and GOLD recommendations will be compared to the current practice in Vietnam: use of ICS with or without long-acting beta-agonists (LABA). Specific biomarkers will also be evaluated as predictors of treatment response.
The Electrical Impedance Tomography (EIT) is a non-invasive exam. This exam performed on the lung continuously produces cross-sectional images of lung function. It may be relevant in lung description.
This is a proposed randomized prospective study to evaluate both the anti-inflammatory and analgesic effects of a COX-2 inhibitor, celecoxib, in patients with aspirin-exacerbated respiratory disease and Chronic rhinosinusitis following endoscopic sinus surgery. The investigators hypothesize that supplementation with celecoxib can potentially improve surgical outcomes and reduce the postoperative usage of opioid analgesics without an increased risk of bleeding or asthma exacerbation
This is a study designed to measure, characterize and describe changes on pulse-oxymetry values produced as a result of deep breaths in patients with stable chronic hypoxemic respiratory failure.
Observational study in patients with chronic respiratory diseases (chronic obstructive pulmonary diseases, bronchiectasis, interstitial lung diseases, neuromuscular diseases, obesity-hypoventilation syndrome...) admitted in intensive care unit for acute respiratory failure. The main objective is to determine the prevalence of right ventricular (RV) dysfunction in this population and to analyze the impact of such a complication on outcomes (survival at day-28, duration of non-invasive or mechanical ventilation, duration of hospital stay). RV function will be assessed by echocardiography at admission, after 3 days and at discharge. Plasma NT-proBNP and troponin levels will be collected.
High flow nasal cannula (HFNC) therapy is non-invasive respiratory support designed to deliver a high flow of heated humidified air, with or without entrained oxygen, via specifically designed nasal prongs. Initially developed for preterm infants, the application of the technology is rapidly spreading to include pediatric patients with various indications, including bronchiolitis, obstructive sleep apnea (OSA), tracheomalacia, asthma, post- extubation support, and even adult hypoxemic respiratory failure. Since it appears to be better tolerated than traditional modes of non-invasive ventilation, such as continuous positive airway pressure (CPAP) or bilevel positive airway pressure (BiPAP), it is increasingly used outside the intensive care setting, despite limited evidence of its safety and efficacy. In Israel, HFNC is approved for home support of children requiring non-invasive respiratory support on the recommendation of a paediatric pulmonologist or intensivist, provided that CPAP and BiPAP have been trialed and deemed not tolerated by the patient. At Schneider Childrens' Medical Center of Israel (SCMI), a tertiary paediatric hospital, therapy is commenced during a brief inpatient stay, at a period of clinical stability. Parents are trained in the use of the device and flow rate is titrated to clinical response. The investigators aim to describe the safety, indications, parameters of utilization, length of treatment, clinical outcomes and parental satisfaction of HFNC in the paediatric home setting.
Background. Acute respiratory infections in childhood have high incidence and morbimortality rates, generating significant sanitary and social costs. Due to its diversity of manifestations and clinical forms, the degree of severity varies widely. Published acute respiratory infections assessment severity scales are mainly focused on acute bronchiolitis, but there is no validated scale to evaluate the effects of respiratory physiotherapy in acute respiratory infections in children. Objective. To study the usefulness of the Acute Bronchiolitis Severity Scale to assess children under 24 months suffering from acute respiratory infections susceptible to receive outpatient respiratory physiotherapy treatment. Methods. Pre-post assessment descriptive study using the Acute Bronchiolitis Severity Scale. Children under 24 months suffering from acute respiratory infection will be evaluated during the first outpatient respiratory physiotherapy treatment.
The term ''Non-invasive ventilation'' (NIV) refers to various methods of respiratory assistance, in the absence of an indwelling endotracheal tube. In recent years, the use of NIV has increased for the treatment of both acute and chronic pediatric respiratory failure. Patient tolerance to the technique is a critical factor determining its success in avoiding endotracheal intubation. One of the key factors determining tolerance to NIV is optimal synchrony between the patient's spontaneous breathing activity and the ventilator's set parameters, known as ''patient-ventilator interaction''. Indeed, synchronization of the ventilator breath with the patient's inspiratory effort, optimizes comfort, minimizes work of breathing and reduces the need for sedation. During NIV, several factors can significantly interfere with the function of the ventilator, leading to an increased risk of asynchrony. Indeed, the presence of unintentional leaks at the patient-mask interface, the sensitivity of inspiratory and expiratory triggers, the ability to compensate for intentional and unintentional leaks and the presence/absence of expiratory valves are all factors that likely play a role in determining patient-ventilator synchronization. The investigators therefore designed the present crossover trial in order to compare the degree of respiratory asynchronies during NIV using different ventilators (Turbine-driven ventilator vs. compressed air-driven ICU ventilators) and different setups (single circuit vs. double circuit) in children with acute respiratory failure.
The general aim of this study is to demonstrate that the measurement of respiratory effort assessed by mandibular movements during sleep is a useful measure for the screening of sleep disordered breathing (SDB) in patients with moderate to severe persistent rhinitis (R). The primary objective is therefore to determine a mandibular movement respiratory disturbance index (MM-RDI) threshold associated with a polysomnography respiratory disturbance index (PSG-RDI) ≥ 15 / h in a population of patients with moderate-to-severe persistent R.